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1 /* | |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #include "config.h" | |
32 #include "WebSharedWorkerImpl.h" | |
33 | |
34 #include "GenericWorkerTask.h" | |
35 #include "KURL.h" | |
36 #include "MessageEvent.h" | |
37 #include "MessagePortChannel.h" | |
38 #include "PlatformMessagePortChannel.h" | |
39 #include "ScriptExecutionContext.h" | |
40 #include "SharedWorkerContext.h" | |
41 #include "SharedWorkerThread.h" | |
42 | |
43 #include "WebMessagePortChannel.h" | |
44 #include "WebString.h" | |
45 #include "WebURL.h" | |
46 | |
47 using namespace WebCore; | |
48 | |
49 namespace WebKit { | |
50 | |
51 #if ENABLE(SHARED_WORKERS) | |
52 | |
53 WebSharedWorkerImpl::WebSharedWorkerImpl(WebCommonWorkerClient* client) | |
54 : m_client(client) | |
55 { | |
56 } | |
57 | |
58 WebSharedWorkerImpl::~WebSharedWorkerImpl() | |
59 { | |
60 } | |
61 | |
62 bool WebSharedWorkerImpl::isStarted() | |
63 { | |
64 // Should not ever be called from the worker thread (this API is only called on WebSharedWorkerProxy on the renderer thread). | |
65 ASSERT_NOT_REACHED(); | |
66 return workerThread(); | |
67 } | |
68 | |
69 void WebSharedWorkerImpl::connect(WebMessagePortChannel* webChannel, ConnectListener* listener) | |
70 { | |
71 // Convert the WebMessagePortChanel to a WebCore::MessagePortChannel. | |
72 RefPtr<PlatformMessagePortChannel> platform_channel = | |
73 PlatformMessagePortChannel::create(webChannel); | |
74 webChannel->setClient(platform_channel.get()); | |
75 OwnPtr<MessagePortChannel> channel = | |
76 MessagePortChannel::create(platform_channel); | |
77 | |
78 workerThread()->runLoop().postTask( | |
79 createCallbackTask(&connectTask, this, channel.release())); | |
80 if (listener) | |
81 listener->connected(); | |
82 } | |
83 | |
84 void WebSharedWorkerImpl::connectTask(ScriptExecutionContext* context, WebSharedWorkerImpl* worker, PassOwnPtr<MessagePortChannel> channel) | |
85 { | |
86 // Wrap the passed-in channel in a MessagePort, and send it off via a connect event. | |
87 RefPtr<MessagePort> port = MessagePort::create(*context); | |
88 port->entangle(channel.release()); | |
89 ASSERT(context->isWorkerContext()); | |
90 WorkerContext* workerContext = static_cast<WorkerContext*>(context); | |
91 ASSERT(workerContext->isSharedWorkerContext()); | |
92 workerContext->toSharedWorkerContext()->dispatchEvent(createConnectEvent(port)); | |
93 } | |
94 | |
95 void WebSharedWorkerImpl::startWorkerContext(const WebURL& url, const WebString& name, const WebString& userAgent, const WebString& sourceCode) | |
96 { | |
97 initializeLoader(url); | |
98 setWorkerThread(SharedWorkerThread::create(name, url, userAgent, sourceCode, *this, *this)); | |
99 workerThread()->start(); | |
100 } | |
101 | |
102 void WebSharedWorkerImpl::terminateWorkerContext() | |
103 { | |
104 stopWorkerThread(); | |
105 } | |
106 | |
107 void WebSharedWorkerImpl::clientDestroyed() | |
108 { | |
109 m_client = 0; | |
110 } | |
111 | |
112 WebWorkerClient* WebSharedWorkerImpl::client() | |
113 { | |
114 // We should never be asked for a WebWorkerClient (only dedicated workers have an associated WebWorkerClient). | |
115 // It should not be possible for SharedWorkerContext to generate an API call outside those supported by WebCommonWorkerClient. | |
116 ASSERT_NOT_REACHED(); | |
117 return 0; | |
118 } | |
119 | |
120 WebSharedWorker* WebSharedWorker::create(WebCommonWorkerClient* client) | |
121 { | |
122 return new WebSharedWorkerImpl(client); | |
123 } | |
124 | |
125 #endif // ENABLE(SHARED_WORKERS) | |
126 | |
127 } // namespace WebKit | |
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